Title:
CIRCUIT BREAKER
Document Type and Number:
WIPO Patent Application WO/2022/158243
Kind Code:
A1
Abstract:
This circuit breaker has disposed thereinside a temperature sensor unit (200) that measures the temperature of a breaker main contact. The temperature sensor unit (200) includes: a thermistor (221) that measures the temperature of the breaker main contact; a cable (220) connected to the thermistor (221); and a case (210) that accommodates therein the thermistor (221) and the cable (220). The case (210) has an accommodation space (230) in which, when the temperature sensor unit (200) is accommodated in a groove (110), the thermistor (221) is fixed to the bottom surface side of the groove, which is the side where the breaker main contact is located. This configuration makes it possible to efficiently measure the temperature of the breaker main contact provided in the circuit breaker.
Inventors:
YOSHIDA TAKENORI (JP)
Application Number:
PCT/JP2021/047929
Publication Date:
July 28, 2022
Filing Date:
December 23, 2021
Export Citation:
Assignee:
TERASAKI DENKI SANGYO KK (JP)
International Classes:
H01H73/00; G01K1/14; G01K7/22; H02B3/00
Foreign References:
| JPS628419A | 1987-01-16 | |||
| JP2005315591A | 2005-11-10 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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